Quicksand Fans

https://www.greendotonline.com/contents/Products.aspx

I haven't used them myself, but they do sell prepaid debit cards (accepted as credit cards) so folks who choose to use cash (or don't want anything odd showing up on the credit card statement) can order videos from Fred, Dave, Robert, Kaol, et. al.

Interesting idea! Dont' need it myself, but it's cool to know that there are such things.

I assume it is just a US thing? Wondering if there is a UK equivalent.

Visa has prepaid credit cards you can use also, they're probably available in the UK (I'm assuming Visa works pretty much everywhere).